.footer {
    position: sticky;
    left: 0;
    bottom: 0;
    width: 100%;
    color: black;
    text-align: center;
    overflow: hidden;
  }

  .icons {
    width: 64px;
    height: 66px;
    box-sizing: border-box;
  }

  .icon-word{
    margin-top: 5%;
  }

  .dropdown-item{
    color: white;
  }

  .table_nav>tr>td{
    border: 1px solid black;
  }
  td{
    border: 1px solid black;

  }
  .dropdown-item:hover{
    background-color: #00A200;
    color: white;
  }

  /* return */
  #myBtn {
    display: none;
    position: fixed;
    bottom: 150px;
    right: 30px;
    border: none;
    outline: none;
    background:green;
    color: white;
    cursor: pointer;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    z-index:99;
  }
  
#footer-margin{
    margin-bottom: 10%;
}

@media (max-width:720px) {
    #footer-margin{
        margin-bottom: 20%;
    }
}
  